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ss7ja [257]
3 years ago
12

Which equation supports the given conjecture? The cube of an even number is an even number.

Mathematics
1 answer:
Natalija [7]3 years ago
7 0
★ CONJECTURE ★

Statement - The cube of an even number is an even number .

Obviously 2nd option will satisfy the same ,
if you've mentioned the exact equation
aslike it's
{2}^{3}  = 8

2 \times 2 \times 2 = 8
Cubing is multiplication factor 3 times of the number , 2 is an even number and it's cube 8 is also an even number , Hence proved
You might be interested in
Solve for x in the literal equation −3 = xy + z.
earnstyle [38]
- 3 = xy + z

xy + z =  - 3

subtract z  from both sides:

xy +z - z = -3 - z

yx = - 3 - z

Divide both sides by y :

yx / y = - 3 - z / y

x = -3-z / y

y ≠ 0

hope this helps!


7 0
3 years ago
Read 2 more answers
3x = 27 + 3y<br> 3x - 10y = 27<br><br> please explain how you got the answer.
Vedmedyk [2.9K]

Answer:

Hi there!

Your answer is:

Y= 0

X= 9

Step-by-step explanation:

3x=27+3y

3x-10y=27

Solve one of them for Y

I chose the first equation

3x=27+3y

-27

3x-27=3y

/3

x-9 = y

NOW, plug y in the second equation!

3x-10y=27

y= x-9

3x-10y=27

3x-10(x-9) = 27

Solve for x!

3x-10x+90 = 27

-7x + 90 =27

-90

-7x = -63

/-7

x= 9

FINALLY, plug back in x for y equation

y=x-9

x=9

y=9-9

y=0

3 0
3 years ago
The average watermelon weighs 8 lbs with a standard deviation of 1.5. Find the probability that a watermelon will weigh between
Andrew [12]

Answer:

The  probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = 0.5932

Step-by-step explanation:

Step 1:-

by using normal distribution find the areas of given x₁ and x₂

Given The average watermelon weighs 8 lbs

μ = 8

standard deviation σ = 1.5

I) when  x₁ = 6.8lbs and  μ = 8 and  σ = 1.5

 z_{1}  = \frac{x_{1} -mean}{S.D} = \frac{6.8-8}{1.5} = - 0.8

ii)  when x₂ = 9.3 lbs and  μ = 8 and  σ = 1.5

z_{2}  = \frac{x_{2} -mean}{S.D} = \frac{9.3-8}{1.5} = 0.866>0

<u>Step2</u>:-

The probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = A(z₂) - A(-z₁)

                      = A(0.866) - A(-0.8)

                       =  A(0.866)+ A(0.8)

check below normal table

                      = 0.3051 + 0.2881

                      = 0.5932

<u>Conclusion</u>:-

The probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = 0.5932

7 0
3 years ago
Find the value of x, with work shown if possible
Furkat [3]

Answer:

Step-by-step explanation:

x / x + 7 = 21/27
cross multiply
27x=21x+147
6x = 147

x=24.5




I hope this helps

4 0
2 years ago
Anna is planning a birthday party for her brother Juan. She is planning on serving hamburgers to her guests.
wolverine [178]
The least amount of hamburger patties anna could buy would be 24 and that is 2 packs of 12. this is because the LCM of 12 and 8 is 24
7 0
3 years ago
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